Robert Schmidt
8107939f08
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly
For automated changes based on OAI PL v1.1:
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml
The rest (cmake, files with missing license, cmake) manually.
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#ifndef TUN_IF_H_
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#define TUN_IF_H_
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#include <stdbool.h>
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#include <net/if.h>
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#include <linux/if_tun.h>
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/*!
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* \brief This function generates the name of the interface based on the prefix and
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* the instance id.
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*
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* \param[in,out] ifname name of the interface
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* \param[in] ifprefix prefix of the interface
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* \param[in] instance_id unique instance number
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*/
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int tun_generate_ifname(char *ifname, const char *ifprefix, int instance_id);
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/*!
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* \brief This function generates the name of the interface based on the prefix and
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* the instance id for a UE.
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*
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* \param[in,out] ifname name of the interface
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* \param[in] flag IFF_TUN (for TUN device) or IFF_TAP (for TAP device)
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* \param[in] ifprefix prefix of the interface
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* \param[in] instance_id unique instance number
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*/
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int tuntap_generate_ue_ifname(char *ifname, int flag, int instance_id, int pdu_session_id);
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/*!
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* \brief This function initializes the TUN interface
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* \param[in] ifname name of the interface
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* \param[in] instance_id unique instance number, used to save socket file descriptor
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*/
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int tun_init(const char *ifname, int instance_id);
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/*!
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* \brief This function initializes the TUN interface for MBMS
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* \param[in] ifname name of the interface
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*/
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int tun_init_mbms(char *ifname);
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/*!
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* \brief Initializes the TUN interface with an IPv4 or IPv6 address and
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* activates the interface.
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* \param[in] ifname name of the interface
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* \param[in] ipv4 IPv4 address of this interface as a string
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* \param[in] ipv6 IPv6 address of this interface as a string
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* \return true on success, otherwise false
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* \note
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* @ingroup _nas
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*/
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bool tun_config(const char* ifname, const char *ipv4, const char *ipv6);
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/*!
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* \brief Initializes and activates the TAP interface.
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* \param[in] ifname name of the interface
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* \return true on success, otherwise false
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* \note
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* @ingroup _nas
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*/
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bool tap_config(const char* ifname);
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/*!
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* \brief Setup a IPv4 rule in table (interface_id - 1 + 10000) and route to
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* force packets coming into interface back through it, and workaround
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* net.ipv4.conf.all.rp_filter=2 (strict source filtering would filter out
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* responses of packets going out through interface to another IP address not
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* in same subnet).
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* \param[in] ifname name of the interface
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* \param[in] instance_id unique instance number, used to create the table
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* \param[in] ipv4 IPv4 address of the UE
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*/
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void setup_ue_ipv4_route(const char* ifname, int instance_id, const char *ipv4);
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/*!
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* \brief This function allocates a TUN or TAP interface
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* \param[in] flag IFF_TUN (for TUN device) or IFF_TAP (for TAP device)
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* \param[in] dev name of the interface
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* \return file descriptor of the allocated interface
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*/
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int tuntap_alloc(int flag, const char *dev);
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/*!
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* \brief This function destroys the TUN or TAP interface
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* \param[in] dev name of the interface
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*/
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void tuntap_destroy(const char *dev);
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#endif /*TUN_IF_H_*/
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